Story by: Nana Yaw Reuben Jr.
For the first time in Ghana’s history, a national programme is measuring rice paddy methane emissions with country-specific field methodology not borrowed global averages. Funded by the Global Methane Hub through MIT, and anchored at CSIR-CRI across five agroecological zones, the exercise will generate the emission factor dataset that Ghana’s climate inventory and carbon finance ambitions urgently need. https://www.myjoyonline.com/
From Pilot to National Scale
The programme’s origin lies in a deliberate investment made under ACE4ES — the CCAC/UNEP-funded Agroecology and Circularity Consortium implemented at CSIR-CRI from January 2024 to December 2025. During that period, the consortium established the Multicultural Technology Park (MTP) on Agroecology, Circular Economy and Climate Action at Fumesua — a living research platform for experimental trials in AWD, biochar, bio-inputs, and biomass valorization. Critically, it also enabled Ghana’s first systematic pilot GHG measurements in rice paddies, using two units of the LI-7810 CH4/CO2/H2O Trace Gas Analyzer (LI-COR Inc., USA) secured under the ACE4ES project. The pilot data confirmed both the feasibility of the approach and the significant divergence between observed fluxes and the IPCC Tier 1 default values Ghana had been using. That demonstration attracted the Global Methane Hub, which funded MIT to scale the exercise nationally. CSIR-CRI accepted the invitation as a direct build-up of the MTP’s foundational work. Read Also: WHEN WOMEN LEAD, THE FUTURE WINS-1
“ACE4ES gave us the platform to ask harder scientific questions — and the MIT partnership gives us the tools to answer them. Ghana’s rice farmers deserve to be counted in the global methane accounting, not estimated.”
— Dr. Kwaku Onwona-Hwesofour Asante, Head, Cassava and Related Value Chains Section, CSIR-CRI
Why Tier 2 Matters
Ghana, like most sub-Saharan African nations, currently relies on IPCC Tier 1 defaults — emission factors derived largely from Asian and temperate conditions that do not reflect Ghana’s soils, varieties, or water management. A credible Tier 2 dataset — generated from direct field measurement using the LI-7810 across Ghana’s five major rice-producing zones — will carry the scientific weight required for inclusion in the National GHG Inventory, NDC progress tracking, and, critically, results-based climate finance mechanisms including voluntary carbon markets and Article 6 bilateral deals. Ghana’s EPA carbon registry and active ITMO frameworks are in place; the missing piece has been the measurement data. http://www.ghanaweb.com
A Signal for the Region
Ghana’s move to Tier 2 has implications beyond its borders. ACE4ES’s reach across Ghana, Nigeria, Benin, and Tanzania positions the consortium to support a West Africa-wide harmonization agenda — modeled on the approach IRRI has led for Asia-Pacific. At the FAO Knowledge Exchange on Frontier Technologies for Low-Emission Rice and Livestock Systems (Bali, June 2026), where CSIR-CRI and ACE4ES represented Africa in both country-perspective and South-South collaboration panels, Dr. Asante made the case directly: invest in Tier 2 MRV as a regional public good, institutionalize it in national inventory architecture, and pair it with farmer-organization aggregation mechanisms that give smallholders a pathway into climate finance. The technology is not the bottleneck. AWD works. The bottleneck is measurement credibility — and this programme addresses it.
| AT A GLANCE | |
| Programme | ACE4ES — Agroecology and Circularity for Ecosystem Services |
| Funder | ACE4ES: CCAC/UNEP (Jan 2024–Dec 2025) · National Mapping: Global Methane Hub / MIT |
| Lead | CSIR-Crops Research Institute (CSIR-CRI), Fumesua, Kumasi, Ghana |
| Partner | Massachusetts Institute of Technology (MIT) |
| Instrument | LI-7810 CH4/CO2/H2O Trace Gas Analyzer, LI-COR Inc., USA (2 units, ACE4ES) |
| Coverage | 5 zones: Dawhenya · Donaso-Ejisu/Fumesua · Kintampo · Tamale · Navrongo |
| Purpose | National Tier 2 emission factor dataset for GHG inventory & climate finance |



